Jano's "patched-jaunty" driver i had working before my BT4 crashed and i had to reinstall but now i cant get it working...

I have tryed to google and i read something about "remove backports" but "dpkg -l | grep linux-backport " dont find any packets so i dont know how the c-w drivers that comes with BT4 is installed and if you can remove the old ones....